CN105051387A - Rotating shaft support structure and rotary machine - Google Patents
Rotating shaft support structure and rotary machine Download PDFInfo
- Publication number
- CN105051387A CN105051387A CN201380075060.3A CN201380075060A CN105051387A CN 105051387 A CN105051387 A CN 105051387A CN 201380075060 A CN201380075060 A CN 201380075060A CN 105051387 A CN105051387 A CN 105051387A
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- China
- Prior art keywords
- bearing
- dispersing
- running shaft
- support structure
- preventing board
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
- F16C17/03—Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/1045—Details of supply of the liquid to the bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1085—Channels or passages to recirculate the liquid in the bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/23—Gas turbine engines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Provided are a rotating shaft support structure and a rotary machine, which are each configured so that the influence of lubricating oil to other devices is reduced. A rotating shaft support structure (journal bearing mechanism)(30) and a rotary machine having the rotating shaft support structure are each configured in such a manner that the rotating shaft support structure (30) supports a rotating shaft (20) and has: a bearing (journal bearing)(50) which is configured so that lubricating oil (L) is supplied by a direct lubrication method to the surface of the bearing (50) facing the rotating shaft (20), and which is also configured so that the bearing (50) is disposed within a cavity (32) which has a suction mechanism for collecting the mist of the lubricating oil (L) discharged from the gap between the rotating shaft (20) and side plates (55, 56); and at least one scatter prevention plate (52, 54) which is disposed vertically above the rotating shaft at a position on the end surface side of the bearing (50) in the axial direction of the rotating shaft.
Description
Technical field
The present invention relates to the rotation axis support structure and rotating machinery that diametrically running shaft are supported.
Background technique
The rotating machinery such as gas turbine, steam turbine is the mechanism that running shaft is rotated.Have in the rotating machinery of running shaft at such, the position limited in radial direction in order to the power of bearing in radial direction, be sometimes provided with shaft bearing (radial bearing) (with reference to patent documentation 1).
At this, the resistance when shaft bearing described in patent documentation 1 is in order to be reduced in the rotation of running shaft between rotor and stator, and possess by the mechanism of direct lubricating system directly to the surface supply lubricant oil of bearing shell.In addition, in patent documentation 2, recording following content: as the mechanism reclaimed lubricant mist, being provided with the pipeline for being discharged by the air in bearing cap and the chamber that formed by bearing cap.
Direct lubricating system in the lubricating system of bearing refers to, use fuel nozzle etc. supply lubricant oil and the method for oil extraction in the axial direction directly to the surface of bearing shell.Use Figure 13 and Figure 14, the flowing of the axial lubricant oil of the rotation under which is described.Figure 13 illustrate from the end on observation of running shaft to the flow graph of lubricant oil.Figure 14 illustrates the flow graph of the lubricant oil observed from the radial direction of running shaft.Lubricant oil is supplied to gear mechanism from supply pump via pipe arrangement, and this supply pump is configured in group and enters in the not shown lubrication oil circulation mechanism of rotating machinery.
Figure 13 illustrate as an example from the end on observation of the running shaft of shaft bearing to sectional view.Bearing 150 has: the carrier ring 161 with top carrier ring 161a and bottom carrier ring 161b; Be configured in the top brass 163 of running shaft 20 side of carrier ring 161, lower brasses 164 and fuel nozzle 166.The oil supply hole 167 of lubricant oil L from the bottom carrier ring 161b being arranged on bearing 150 is supplied to oily path 165, the oily path 165 that circumference via the running shaft 20 in the carrier ring 161b of bottom is arranged, discharges from the fuel nozzle 166 being configured at lower brasses 164 to the surface of running shaft 20.Fuel nozzle 166 is configured with multiple in the circumferential.
As shown in figure 14, be discharged to the surface of lubricant oil L along running shaft 20 in the gap between the surface of running shaft 20 and the inner peripheral surface of bearing 150 from fuel nozzle 166, to upstream side and the downstream side flowing of axis.The two ends axially of bearing 150 are covered by side plate 155,156 at the complete cycle around running shaft.Lubricant oil L discharges in the chamber of the gap between side plate 155,156 and the surface of running shaft 20 in the bearing cap being configured with bearing.Chamber is aspirated by lubrication oil circulation mechanism and remains decompression state, leaks into outside to avoid the mist of oil etc. of lubricant oil from bearing cap.From the bottom that the lubricant oil L of bearing 150 discharge accumulates in chamber as the oily DR of excretion, and send back to lubrication oil circulation mechanism and be recycled.In addition, the mist of oil in chamber is aspirated by the aspirating mechanism with pump port be arranged in chamber and is recovered.
At first technical paper
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2010-203481 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2005-240691 publication
Summary of the invention
The problem that invention will solve
But, as shown in figure 14, the lubricant oil ejected from bearing is discharged from side plate 155, gap between 156 and running shaft to chamber, but when running shaft 20 High Rotation Speed, such phenomenon can be produced: the lubricant oil L ejected does not flow down to the bottom of chamber as the oily DR of excretion, and be looped around running shaft 20 around together with the High Rotation Speed of running shaft 20, and disperse to the radial direction with rotating shaft direct cross under the influence of centrifugal force.That is, lubricant oil just from side plate 155,156 discharge after, under the influence of centrifugal force along side plate 155,156 sidewall radius vector upwards lateral direction flowing, disperse to chamber from the complete cycle of the end of side plate 155,156.A part of dispersing to the splashing oil SL of the top of chamber likely flows into pump port and blocks aspirating mechanism, thus rotating machinery cannot be operated.
The present invention is for solving above-mentioned technical problem, its object is to, provide a kind of and avoid the blocking that causes of dispersing etc. because of lubricant oil and suppress lubricant oil to impact other the equipment such as aspirating mechanism thus can the rotation axis support structure of long-time stable running and rotating machinery.
For solving the means of problem
Feature for the rotation axis support structure of the present invention realizing above-mentioned purpose is, described rotation axis support structure supports running shaft, and this rotation axis support structure has: bearing, it utilizes direct lubricating system to supply lubricant oil to the face opposed with described running shaft, and be configured at and maintain in the chamber of aspirating mechanism, the mist of this aspirating mechanism to the described lubricant oil leaked out from described running shaft reclaims; And at least one preventing board of dispersing, its be configured at the described running shaft of described bearing end face side axially and on the upside of the vertical of described running shaft.
According to the present invention, by preventing board of dispersing, can suppress to disperse on the upside of vertical from the lubricant oil of discharging vertically between bearing and running shaft.Thereby, it is possible to suppress the blocking etc. caused because of lubricant oil to impact other equipment, rotating machinery long-time stable can be made to operate.
In rotation axis support structure of the present invention, also can be, described in preventing board of dispersing be fixed on described bearing.
According to the present invention, preventing board of dispersing can be assembled simply, and easily be arranged on the position of hope relative to bearing.
Rotation axis support structure of the present invention also can be, possess two preventing board of dispersing, a preventing board of dispersing is configured at the end face side of a side axially of the described running shaft of described bearing, and another preventing board of dispersing is configured at the end face side of the opposing party axially of the described running shaft of described bearing.
According to the present invention, by arranging at the two ends axially of bearing preventing board of dispersing, can lubricant oil be suppressed further to disperse.
In rotation axis support structure of the present invention, also can be, described in preventing board of dispersing at the end face of the radially inner side of described running shaft, there is rake, this rake tilts along with towards radially inner side to the direction in the axial direction away from described bearing.
Therefore, it is possible to guided on the downside of vertical by lubricant oil, can lubricant oil be suppressed further to disperse.
In rotation axis support structure of the present invention, also can be, described preventing board of dispersing is configured to, when the tangent line of described running shaft is extended to the direction along sense of rotation, when dispersing preventing board from end on observation, the inner region that the inner peripheral surface of substantially horizontal or the tangent line tilted on the upside of vertical compared with substantially horizontal and described rake is formed is overlapping.
Therefore, it is possible to suppress lubricant oil to disperse on the upside of vertical more reliably.
In rotation axis support structure of the present invention, also can be, described bearing be shaft bearing.
Rotating machinery of the present invention for realizing above-mentioned purpose has the rotation axis support structure described in above-mentioned any one.
According to the present invention, can suppress to impact other equipment, rotating machinery long-time stable can be made to operate.
Invention effect
According to rotation axis support structure of the present invention and rotating machinery, can preventing board of dispersing be utilized, suppress to disperse on the upside of vertical from the lubricant oil of discharging vertically between bearing and running shaft.Thereby, it is possible to make lubricant oil fall on the downside of vertical, can suppress to impact other equipment.Consequently, rotating machinery long-time stable can be made to operate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the Sketch of the gas turbine of the shaft bearing mechanism representing the embodiment possessed as rotation axis support structure.
Fig. 2 is the sectional view of the Sketch that the radial direction of the running shaft of the shaft bearing mechanism represented from the present embodiment is observed.
Fig. 3 be the running shaft of the shaft bearing mechanism represented from the present embodiment end on observation to the sectional view of Sketch.
Fig. 4 is the sectional view of the Sketch that the radial direction of the running shaft of the shaft bearing mechanism represented from the present embodiment is observed.
Fig. 5 is the plan view of the Sketch of the preventing board of dispersing of the side representing the present embodiment.
Fig. 6 is the A-A line sectional view of Fig. 5.
Fig. 7 is the B-B line sectional view of Fig. 5.
Fig. 8 is the plan view of the Sketch of the preventing board of dispersing of the opposing party representing the present embodiment.
Fig. 9 is the C-C line sectional view of Fig. 8.
Figure 10 is the explanatory drawing be described the function of the preventing board of dispersing of the present embodiment.
Figure 11 is the explanatory drawing be described the function of the preventing board of dispersing of the present embodiment.
Figure 12 is the explanatory drawing be described the function of the preventing board of dispersing of the present embodiment.
Figure 13 illustrate from the end on observation of running shaft to the flow graph of lubricant oil.
Figure 14 illustrates the flow graph of the lubricant oil observed from the radial direction of running shaft.
Embodiment
Referring to accompanying drawing, the preferred embodiment of rotation axis support structure involved in the present invention is described in detail.It should be noted that, limit the present invention not by this embodiment, in addition, when having multiple embodiment, also comprising each embodiment of combination and the structure that forms.In the present embodiment, as preferred embodiment, be that the situation of gas turbine is described with rotating machinery, but rotation axis support structure of the present invention can be used in the rotating machinery beyond gas turbine, such as steam turbine, various prime mover and pump etc.The rotation axis support structure of the present embodiment, when becoming large gas turbine for apparatus structure, can obtain better effect.
Embodiment
Fig. 1 is the schematic diagram of the Sketch of the gas turbine of the shaft bearing mechanism representing the embodiment possessed as rotation axis support structure.As shown in Figure 1, gas turbine 10 has compressor 12, burner 14, turbine 16, bearing means 18, bearing means 19 and running shaft 20.Each portion of gas turbine 10 is configured in the inside of housing 24.A part for the compressor 12 of gas turbine 10 and a part for turbine 16 are fixed on running shaft 20, rotate together with running shaft 20.Compressor 12 is for being taken into air and compressing air.Supplied to burner 14 by the air after compressor 12 compresses.Burner 14 will produce combustion gas G in the air of fuel mix after being compressed by compressor 12.
The combustion gas G produced by burner 14 is imported its inside and makes the backward moving vane 22 being arranged at running shaft 20 of these combustion gas G expansion blow attached by turbine 16, thus the thermal power transfer of combustion gas G is become mechanical rotation energy and produces power.
Specifically, as shown in Figure 1, turbine 16 possesses: the housing 24 of running shaft 20, the multiple moving vanes 22 being arranged at running shaft 20 side, collecting running shaft 20 and moving vane 22 and be fixed on multiple stator blades 26 of housing 24 side.The moving vane 22 of turbine 16 and stator blade 26 axially alternately arranging at running shaft 20.Moving vane 22 is by ejecting from burner 14 and making running shaft 20 rotate at the combustion gas G axially flowed of running shaft 20.The rotation of running shaft 20 can be taken out by the mechanism linked with running shaft 20, such as generator.It should be noted that, in the following description, the side (left side on the paper of Fig. 1) observing compressor 12 from turbine 16 is called upstream side, the side (right side on the paper of Fig. 1) observing turbine 16 from compressor 12 side is called downstream side.In addition, the direction that running shaft 20 extends is called axis, direction orthogonal to the axial direction is called radial direction.In addition, the direction that the axle center P of running shaft 20 extends is called substantially horizontal.Further, with respect to the horizontal plane vertical direction is called vertical.
Bearing means 18 is configured in the position leaning on upstream side than the compressor 12 of running shaft 20.Bearing means 18 has: shaft bearing mechanism 30, thrust-bearing mechanism 40, lubrication oil circulation mechanism 41 and aspirating mechanism 48.Housing 24 is fixed in shaft bearing mechanism 30, and the load born in the radial direction of running shaft 20 is to limit running shaft 20 relative to the movement in the radial direction of housing 24.Housing 24 is fixed in thrust-bearing mechanism 40, and the load axially bearing running shaft 20 is to limit the movement axially of running shaft 20 relative to housing 24.Lubrication oil circulation mechanism 41 supplies lubricant oil to shaft bearing mechanism 30 and thrust-bearing mechanism 40 and reclaims this lubricant oil, thus makes lubrication oil circulation.In addition, aspirating mechanism 48 in order to collecting shaft bearing mechanism 30, the air in space (chamber 32) that formed by bearing cap 31 aspirates the mist of oil that reclaims lubricant oil and arranges.In lubrication oil circulation mechanism 41, be provided with not shown ventilating fan etc., maintain in space under reduced pressure for the air in suction space.Deliver to from aspirating mechanism 48 mist of oil comprised the air of lubrication oil circulation mechanism 41 to be separated from air, be stored in lubrication oil circulation mechanism 41 together with the excretion oil DR reclaimed by shaft bearing.The lubricant oil L be recovered to by not shown supply pump forced feed to gear mechanism.Thus, aspirating mechanism 48 can reclaim the mist of the lubricant oil be mixed in the air in the space being formed at shaft bearing mechanism 30, and makes it return lubrication oil circulation mechanism 41.Aspirated by the air in aspirating mechanism 48 pairs of spaces, maintain all the time under reduced pressure in space thus, can prevent mist of oil from leaking into outside from bearing cap.
Bearing means 19 is arranged at the end of turbine 16 side of running shaft 20.Bearing means 19 has shaft bearing mechanism 30, lubrication oil circulation mechanism 42 and aspirating mechanism 49.Housing 24 is fixed in shaft bearing mechanism 30, and the load born in the radial direction of running shaft 20 is to limit running shaft 20 relative to the movement in the radial direction of housing 24.Lubrication oil circulation mechanism 42 supplies lubricant oil to shaft bearing mechanism 30 and reclaims lubricant oil, thus makes lubrication oil circulation.Aspirating mechanism 49 possesses the function identical with aspirating mechanism 48, by aspirating the air be formed in the chamber 32 of shaft bearing mechanism 30, can prevent mist of oil from leaking into outside from the chamber 32 of shaft bearing.Gas turbine 10 is structure as above, and running shaft 20 is supported on housing 24 by bearing means 18,19.
Then, use Fig. 2 to Figure 12, the shaft bearing mechanism 30 of the example as the rotation axis support structure for supporting rotating shaft is described.It should be noted that, in the present embodiment, the shaft bearing mechanism 30 of bearing means 18 is described, but preferably the shaft bearing mechanism 30 of bearing means 19 also has identical structure.First, use Fig. 1 and Fig. 2, the Sketch of shaft bearing mechanism 30 is described.Fig. 2 is the sectional view of the Sketch of the shaft bearing mechanism representing the present embodiment.
As shown in Figure 1, the surrounding of shaft bearing mechanism 30 is surrounded by housing 24.As shown in Figure 2, shaft bearing mechanism 30 configures in the mode of being surrounded by bearing cap, and has shaft bearing 50, side plate 55,56 and preventing board 52,54 of dispersing.The space surrounded by bearing cap 31 of having accommodated shaft bearing 50 forms chamber 32.
Shaft bearing (bearing) 50 is configured in the periphery of running shaft 20, and inner circumferential surface is opposed with running shaft 20.Shaft bearing 50 is fixed on housing 24.Shaft bearing 50 is supplied lubricant oil L by from lubrication oil circulation mechanism 41.Shaft bearing 50 forms lubricant film by the lubricant oil L be supplied between running shaft 20.Supply come lubricant oil as excretion oily DR discharge from the gap between shaft bearing and running shaft 20, substantially fall below vertical from running shaft 20 and be stored in the bottom of chamber 32.The excretion oil DR be recovered carries out recirculation and is used again together with the mist of oil reclaimed by lubrication oil circulation mechanism 41.In addition, side plate 55,56 is to be arranged on the two ends axially of shaft bearing 50 from the mode of the complete cycle axially covering the shaft bearing 50 around running shaft 20.
Preventing board of dispersing 52 is fixed on the face of face, i.e. thrust-bearing mechanism 40 side of the upstream side axially of shaft bearing 50.Preventing board of dispersing 54 is fixed on the face in the downstream side axially of shaft bearing 50.It should be noted that, see below about the shape of preventing board 52,54 of dispersing, function.Then, pump port 48a is formed with in the space of aspirating mechanism 48 in the chamber 32 being configured with shaft bearing 50 and on the upside of the vertical of shaft bearing 50.It should be noted that, the position of pump port 48a is preferably placed at the centre of the outer circumferential side of the shaft bearing 50 in the radial direction in chamber 32 and the axial thickness of shaft bearing 50 axially.If be positioned at this position, then the oily SL that splashes can not flow directly into pump port 48a.
Then, use Fig. 3 and Fig. 4, the Sketch of shaft bearing 50 is described.Fig. 3 is the plan view of the Sketch of the shaft bearing 50 applying direct lubricating system representing the present embodiment.Shaft bearing 50 is tilting pad chip shaft bearing, has carrier ring 61, top brass 63, lower brasses 64 and fuel nozzle 66.
Carrier ring 61 as the shell of bearing is made up of top carrier ring 61a and bottom carrier ring 61b.Top carrier ring 61a and bottom carrier ring 61b to be fastened by bolts etc. and to link.Top brass 63 is respectively configured with one at the two ends axially of this bearing, and outer circumferential face connects with the inner peripheral surface of top carrier ring 61a.The outer circumferential face of lower brasses 64 connects with the inner peripheral surface of bottom carrier ring 61b and is configured at the inner side in radial direction.
Two end part in the circumference of top brass 63 and lower brasses 64 and the inner peripheral surface side of intermediate portion are provided with multiple fuel nozzle 66.Each fuel nozzle 66 configures abreast with running shaft in the axial direction.Bottom carrier ring 61b is provided with oil supply hole 67, supplies lubricant oil for shaft bearing 50.In addition, oil supply hole 67 is connected with the oily path 65 of boring a hole in the circumference of the inner circumferential side of top carrier ring 61a and bottom carrier ring 61b.Further, oily path 65 radius vector inward side branch upwards and being communicated with fuel nozzle 66.Fuel nozzle 66 has multiple opening in the inner peripheral surface side of running shaft 20.It should be noted that, said structure is an example of the structure of the shaft bearing of direct lubricating system, if the shaft bearing of direct lubricating system, then also can be other known structures, such as, also can be the structure shown in patent documentation 1.
Then, use Fig. 2, Fig. 5 to Figure 12, to dispersing, preventing board 52,54 is described.Fig. 5 is the plan view of the Sketch of the preventing board of dispersing of the side representing the present embodiment.Fig. 6 is the A-A line sectional view of Fig. 5.Fig. 7 is the B-B line sectional view of Fig. 5.Fig. 8 is the plan view of the Sketch of the preventing board of dispersing of the opposing party representing the present embodiment.Fig. 9 is the C-C line sectional view of Fig. 8.Figure 10 to Figure 12 is the explanatory drawing be described the function of the preventing board of dispersing of the present embodiment respectively.
As shown in Figure 2 and Figure 5, preventing board of dispersing 52 is for shaft bearing 50, be configured in upstream side axially, internal diameter and the component of ring-type that external diameter with the external diameter of shaft bearing 50 roughly the same larger than running shaft 20.Further, preventing board of dispersing 52 is the shapes being cut to semicircle (180 degree) on the direction around axle (sense of rotation) of running shaft 20.That is, the configuring area in the sense of rotation of preventing board of dispersing 52 is the half of complete cycle.The line linked up by sense of rotation two end face 79 of preventing board of dispersing 52 covers the vertical upper portion of shaft bearing 50 under the state tilted relative to substantially horizontal.Specifically, when observing two end face 79 from upstream side axially, the state that have rotated several angle from substantially horizontal towards direction opposite to the direction of rotation is become.
As shown in Figure 5 and Figure 6, the ring-type sheet material portions of the radial outside of preventing board of dispersing 52 is base portion 70, contacts with shaft bearing 50.The ratio base portion 70 of preventing board of dispersing 52 leans on the part of radially inner side to be the rake 72 tilted relative to base portion 70.Rake 72 tilts along with towards radially inner side to the direction that the shaft bearing 50 of fixed base 70 is separated in the axial direction.The inner peripheral surface 72a of the side opposed with running shaft 20 of rake 72 is connected with the inner circumferential end 70a of base portion 70.In addition, acute angle-shaped front end 72b is formed with in the front end of the axial upstream side of rake 72.
In addition, as shown in figure 5 and figure 7, preventing board of dispersing 52 rear side in a rotational direction, is provided with jut 74 in the horizontal direction.Jut 74 is configured on the face of side contrary in the axial direction, the face contacted with shaft bearing 50 of base portion 70 and rake 72, gives prominence to from the face of base portion 70 along the axis of running shaft 20.In addition, jut 74 more radius vector upwards protruding outside compared with the end of the radial outside of base portion 70.In addition, preventing board of dispersing 52 is provided with the bolt hole 78 that multiple confession is inserted for bolt preventing board 52 of dispersing being anchored on shaft bearing 50 on base portion 70.
As shown in Figure 2 and Figure 8, preventing board of dispersing 54 for being configured in downstream side axially, internal diameter and the component of ring-type that external diameter with the external diameter of shaft bearing 50 roughly the same larger than running shaft 20 for shaft bearing 50.Further, preventing board of dispersing 54 is the shape being cut to semicircle (180 degree) on the direction around axle (sense of rotation) of running shaft 20.That is, the configuring area in the sense of rotation of preventing board of dispersing 54 is also the half of complete cycle.The line linked up by sense of rotation two end face 89 of preventing board of dispersing 54 covers the vertical upper portion of shaft bearing 50 under the state tilted relative to substantially horizontal.Specifically, when observing two end face 89 from downstream side axially, the state that have rotated several angle from substantially horizontal towards direction opposite to the direction of rotation is become.Therefore, when from end on observation, the allocation position in the sense of rotation of preventing board of dispersing 54 is overlapping with preventing board 52 of dispersing.
The fundamental profile shape of preventing board of dispersing 54 is the shape identical with preventing board 52 of dispersing.Specifically, the fundamental profile shape of preventing board of dispersing 54 is the shape identical with the A-A line section shown in Fig. 6.The ring-type sheet material portions of the radial outside of preventing board of dispersing 54 is base portion 80, contacts with shaft bearing 50.The ratio base portion 80 of preventing board of dispersing 54 leans on the part of radially inner side to be the rake 82 tilted relative to base portion 80.Rake 82 tilts along with towards radially inner side to the direction that the shaft bearing 50 of fixed base 80 is separated in the axial direction.The shape of rake 82 is shapes identical with rake 72 essence.
In addition, as shown in Figure 8 and Figure 9, the position that preventing board of dispersing 54 is becoming the side most on the lower in vertical is provided with jut 84.Jut 84 is configured on the face of side contrary in the axial direction, the face contacted with shaft bearing 50 of base portion 80 and rake 82, gives prominence to from the face of base portion 80 along the axis of running shaft 20.In addition, preventing board of dispersing 54 is provided with the bolt hole 88 that multiple confession is inserted for bolt preventing board 54 of dispersing being anchored on shaft bearing 50 on base portion 80.
Preventing board of dispersing 52,54 is shape as described above.Shaft bearing mechanism 30, by arranging preventing board 52,54 of dispersing like that as shown in Figure 10 to Figure 12, can suppress from the lubricant oil L discharged vertically between running shaft 20 and shaft bearing 50 as splashing oily SL and dispersing on the upside of vertical relative to running shaft 20.Namely, as illustrated in the bearing 150 shown in above-mentioned Figure 14, the lubricant oil L being supplied to shaft bearing 50 discharges to preventing board 52,54 side of dispersing from the gap between the side plate 55,56 and running shaft 20 at the two ends be configured at axially along running shaft 20.Further, as shown in Figure 10, Figure 11 and Figure 12, the lubricant oil L discharged from side plate 55,56 disperses (arrow 102) for the sidewall radius vector lateral direction upwards all along side plate 55,56 under the effect of the centrifugal force of running shaft 20.When the region surrounded by preventing board 52 of dispersing, lubricant oil L temporary transient sidewall radius vector along side plate 55 as shown in the arrow 102 of Figure 12 that the surface along running shaft 20 is flowed out flows in outward direction.Lubricant oil L, after flowing in outward direction along the sidewall radius vector of side plate 55, collides with the inner circumferential end 70a of base portion 70 and the inner peripheral surface 72a of rake 72, and the radially inner side of such inclination at rake 72 as shown by arrows 103 forms the stream that turns back.Therefore, the lubricant oil L that have left the front end 72b of rake 72 from front end 72b along the flows outside of the outer circumferential face of rake in radial direction, and can not disperse as the oily SL of splashing.At this, in the present embodiment, as shown in Figure 10 and Figure 11, running shaft 20 rotates along the direction of arrow 101, therefore, the lubricant oil L be discharged discharges vertically along the surface of running shaft 20, and under the effect of the centrifugal force of running shaft 20, along the tangent direction on the surface of running shaft 20 and the direction of the direction of sense of rotation front side and arrow 102 discharge.
As shown in Figure 10 and Figure 11, in shaft bearing mechanism 30, the position of the half that the preventing board 52,54 of dispersing becoming the semi-circular shape of ring-type is configured on the upside of the horizontal vertical of covering have rotated the position of predetermined angular.In the present embodiment, the preventing board 52,54 that makes to disperse rotates with the angle of less than 90 degree.Specifically, preventing board of dispersing 52,54 is preferably configured in as lower area, namely, when disperse from end on observation preventing board 52,54, the region that the region that inner peripheral surface 72a, 82a of rake 72,82 are formed, the region (inner region) namely surrounded by the front end 72b on the inner circumferential end 70a of base portion 70 and the radial direction of rake 72 are overlapping with the tangent line on the surface of running shaft 20.The angle colliding the inner peripheral surface 72a of rake 72 such relative to the tangent line of substantially horizontal above vertical in the arrow 102 formed with the streamline of the lubricant oil left from the surface of running shaft 20 is installed.Namely, in Fig. 10, if for the tangent line that becomes the inner circumference edge 79a intersected with end face 79 by the inner circumferential end 70a of the base portion 70 of the side, forefront in sense of rotation, arrow 102a is relative to horizontal direction parallel or towards the setting angle below vertical.
Thus, preventing board of dispersing 52,54 can make in the horizontal direction or contact with the inner peripheral surface 72a (82a) of rake 72 (82) as shown in Figure 12 by the lubricant oil of discharging on the upside of vertical to than substantially horizontal.The lubricant oil contacted with the inner peripheral surface 72a (82a) of rake 72 (82) becomes the flowing in direction towards the opposite towards the flowing of radial outside from direct of travel.That is, the rake 72 (82) that flows through of lubricant oil changes into substantially horizontal or the direction that tilts on the downside of vertical than substantially horizontal and the direction of radially inner side, and falls to the bottom of chamber 32 as the oily DR of excretion.
It should be noted that, in Fig. 10, when the region of the downside in the vertical of the running shaft 20 of preventing board 52 of not dispersing, the direction of the arrow 102 of the tangent line that the streamline becoming most lubricant oil is formed is relative to substantially horizontal along sense of rotation direction downward, and therefore lubricant oil can not become the oily SL and dispersing of splashing in chamber 32.But the setting angle of preventing board of dispersing 52 is preferably: become the tangent line of the inner circumferential end 79b intersected by the end face 79 of the rearmost side in the sense of rotation of the inner peripheral surface 72a with rake 72, arrow 102b is relative to horizontal direction parallel or below vertical.
Like this, shaft bearing mechanism 30 to be dispersed preventing board 52,54 by setting, can by discharge between shaft bearing 50 and running shaft 20 and the lubricant oil that radius vector is dispersed in outward direction guides on the downside of vertical relative to substantially horizontal.Namely, by utilizing preventing board 52,54 of dispersing to be guided on the downside of vertical by the lubricant oil radially dispersed, can suppress discharge on the upside of vertical at the position lubricant oil in the outer part of the radial direction than shaft bearing 50 and disperse in chamber 32 as the oily SL of splashing.The lubricant oil flowed down below vertical from running shaft 20 is stored in the bottom of chamber 32 as the oily DR of excretion, and is sent back in lubrication oil circulation mechanism 41,42.
Thereby, it is possible to suppress to impact other equipment be configured in around shaft bearing 50.Such as, as in this embodiment, even if when being provided with aspirating mechanism 48 when aspirating the air in the space being configured with shaft bearing 50, the lubricant oil dispersed also can be suppressed to arrive the periphery of pump port 48a.Thus, when aspirating mechanism 48 aspirates the air comprising vaporific lubricant oil, can suppress to aspirate the lubricant oil of drop and namely to splash oily SL.Splash oily SL thereby, it is possible to suppress aspirating mechanism 48 to aspirate and block pump port 48a etc.Thereby, it is possible to suppress the blocking caused because of lubricant oil etc. and impact other equipment, rotating machinery long-time stable can be made to operate.
In addition, as in this embodiment, by arranging rake 72,82 dispersing in preventing board 52,54, preventing board 52,54 of dispersing can be utilized to catch lubricant oil with higher probability, and, lubricant oil can be guided on the downside of vertical.Thereby, it is possible to the possibility that reduction lubricant oil impacts other equipment.Thereby, it is possible to suppress the blocking caused because of lubricant oil etc. and impact other equipment, rotating machinery long-time stable can be made to operate.
In addition, preventing board of dispersing 52,54 by arranging jut 74,84, even if when the lubrication wet goods reflected by other parts splashes on the upside of vertical, also can stop and move on the upside of vertical.The possibility reducing lubricant oil thereby, it is possible to further other equipment are impacted.It should be noted that, also can configure multiple jut 74,84 in a rotational direction.
It should be noted that, preventing board of dispersing preferably possesses the various shapes of the present embodiment in order to obtain above-mentioned various effect, but is not limited to this.Such as, as long as the tangent line such condition overlapping with the inner region of preventing board of dispersing that the streamline that preventing board configuration scope in a rotational direction of dispersing meets the lubricant oil left from the surface of running shaft is formed, then 180 degree are not limited to.90 degree, 170 degree, 250 degree can.It should be noted that, preventing board of dispersing by being 180 degree, can suitably catch in the horizontal direction or with tilt on the upside of vertical compared with substantially horizontal towards discharge lubricant oil.In addition, preventing board of dispersing preferably is provided with rake, jut, but is not limited to this.Replace rake, the occlusion part with parallel to an axis also can be set.In addition, the section of the shape in the face of the radially inner side of preventing board of dispersing can be also curve for straight line, can also be the combination of straight line and curve.
In addition, shaft bearing mechanism preferably as in this embodiment two ends in the axial direction configure preventing board of dispersing respectively, but also only preventing board of dispersing can be set in a side side.In addition, when shaft bearing mechanism possesses aspirating mechanism, preferably the end face being provided with the shaft bearing of the side of pump port in the axial direction arranges preventing board of dispersing.Thereby, it is possible to suitably suppress lubricant oil to arrive pump port.
In addition, the shaft bearing mechanism of the present embodiment preventing board of dispersing is fixed on shaft bearing, but is not limited to this.Preventing board of dispersing can prevent dispersing from the lubricant oil of discharging between shaft bearing and running shaft, also can by the parts carry beyond shaft bearing.Such as, also housing can be fixed on.
By as in this embodiment shaft bearing mechanism being set to rotation axis support structure, the impact of the lubricant oil be discharged suitably can be suppressed further.It should be noted that, as rotation axis support structure, be not limited to shaft bearing mechanism, also can be set to thrust-bearing mechanism.
Description of reference numerals
10 gas turbines
12 compressors
14 burners
16 turbines
18,19 bearing meanss
20 running shafts
22 moving vanes
24 housings
26 stator blades
30 shaft bearing mechanisms (rotation axis support structure)
31 bearing caps
32 chambers
40 thrust-bearing mechanisms
41,42 lubrication oil circulation mechanisms
48 aspirating mechanisms
48a pump port
50 bearings (shaft bearing)
52,54 disperse preventing board
55,56 side plates
61 carrier rings
61a top carrier ring
61b bottom carrier ring
63 top brasses
64 lower brasseses
65 oily paths
66 fuel nozzle
67 oil supply holes
70 base portions
70a inner circumferential end
72,82 rakes
72a, 82a inner peripheral surface
72b front end
74,84 juts
78 bolts hole
79 end faces
79a inner circumference edge
79b inner circumferential end
Claims (amendment according to treaty the 19th article)
1. (after amendment) a kind of rotation axis support structure, is characterized in that,
Described rotation axis support structure supports running shaft,
Described rotation axis support structure has:
Bearing, it utilizes direct lubricating system to supply lubricant oil to the face opposed with described running shaft, and is configured at and maintains in the chamber of aspirating mechanism, and the mist of this aspirating mechanism to the described lubricant oil leaked out from described running shaft reclaims; And
At least one preventing board of dispersing, its be configured at the described running shaft of described bearing end face side axially and on the upside of the vertical of described running shaft,
Described preventing board of dispersing has rake at the end face of the radially inner side of described running shaft, and this rake tilts along with towards radially inner side to the direction in the axial direction away from described bearing.
2. rotation axis support structure according to claim 1, is characterized in that,
Described preventing board of dispersing is fixed on described bearing.
3. rotation axis support structure according to claim 1 and 2, is characterized in that,
Described rotation axis support structure possesses two preventing board of dispersing, and a preventing board of dispersing is configured at the end face side of a side axially of the described running shaft of described bearing,
Another preventing board of dispersing is configured at the end face side of the opposing party axially of the described running shaft of described bearing.
4. (deletion)
5. (after amendment) rotation axis support structure according to any one of claim 1 to 3, is characterized in that,
Described preventing board of dispersing is configured to, when the tangent line of described running shaft is extended to the direction along sense of rotation, from disperse described in end on observation preventing board time, the inner region that the inner peripheral surface of substantially horizontal or the tangent line tilted on the upside of vertical compared with substantially horizontal and described rake is formed is overlapping.
6. (after amendment) rotation axis support structure according to any one of claims 1 to 3,5, is characterized in that,
Described bearing is shaft bearing.
7. (amendment after) a kind of rotating machinery, it has claims 1 to 3, rotation axis support structure according to any one of 5,6.
Claims (7)
1. a rotation axis support structure, is characterized in that,
Described rotation axis support structure supports running shaft,
Described rotation axis support structure has:
Bearing, it utilizes direct lubricating system to supply lubricant oil to the face opposed with described running shaft, and is configured at and maintains in the chamber of aspirating mechanism, and the mist of this aspirating mechanism to the described lubricant oil leaked out from described running shaft reclaims; And
At least one preventing board of dispersing, its be configured at the described running shaft of described bearing end face side axially and on the upside of the vertical of described running shaft.
2. rotation axis support structure according to claim 1, is characterized in that,
Described preventing board of dispersing is fixed on described bearing.
3. rotation axis support structure according to claim 1 and 2, is characterized in that,
Described rotation axis support structure possesses two preventing board of dispersing, and a preventing board of dispersing is configured at the end face side of a side axially of the described running shaft of described bearing,
Another preventing board of dispersing is configured at the end face side of the opposing party axially of the described running shaft of described bearing.
4. rotation axis support structure according to any one of claim 1 to 3, is characterized in that,
Described preventing board of dispersing has rake at the end face of the radially inner side of described running shaft, and this rake tilts along with towards radially inner side to the direction in the axial direction away from described bearing.
5. rotation axis support structure according to any one of claim 1 to 4, is characterized in that,
Described preventing board of dispersing is configured to, when the tangent line of described running shaft is extended to the direction along sense of rotation, from disperse described in end on observation preventing board time, the inner region that the inner peripheral surface of substantially horizontal or the tangent line tilted on the upside of vertical compared with substantially horizontal and described rake is formed is overlapping.
6. rotation axis support structure according to any one of claim 1 to 5, is characterized in that,
Described bearing is shaft bearing.
7. a rotating machinery, it has the rotation axis support structure according to any one of claim 1 to 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-072643 | 2013-03-29 | ||
| JP2013072643A JP6037916B2 (en) | 2013-03-29 | 2013-03-29 | Rotating shaft support structure and rotating machine |
| PCT/JP2013/078619 WO2014155798A1 (en) | 2013-03-29 | 2013-10-22 | Rotating shaft support structure and rotary machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105051387A true CN105051387A (en) | 2015-11-11 |
| CN105051387B CN105051387B (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380075060.3A Active CN105051387B (en) | 2013-03-29 | 2013-10-22 | Rotation axis support structure and rotating machinery |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9945291B2 (en) |
| JP (1) | JP6037916B2 (en) |
| KR (1) | KR101726119B1 (en) |
| CN (1) | CN105051387B (en) |
| DE (1) | DE112013006892B4 (en) |
| WO (1) | WO2014155798A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911595A (en) * | 2019-05-10 | 2020-11-10 | 纳博特斯克有限公司 | Rotating shaft member holding mechanism and speed reducer |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10544732B2 (en) | 2011-07-28 | 2020-01-28 | Pratt & Whitney Canada Corp. | Rotary internal combustion engine with removable subchamber insert |
| JP6460818B2 (en) * | 2015-02-06 | 2019-01-30 | 三菱日立パワーシステムズ株式会社 | Bearing device and rotating machine |
| US10323690B2 (en) * | 2015-08-19 | 2019-06-18 | Daido Metal Company Ltd. | Vertical bearing device |
| US10400821B2 (en) * | 2015-08-19 | 2019-09-03 | Daido Metal Company Ltd. | Vertical bearing device |
| JP6571026B2 (en) * | 2016-02-29 | 2019-09-04 | 三菱日立パワーシステムズ株式会社 | Journal bearing and rotating machine |
| JP7000010B2 (en) | 2016-02-29 | 2022-01-19 | 三菱パワー株式会社 | Journal bearings and rotating machinery |
| KR102168770B1 (en) * | 2016-03-22 | 2020-10-22 | 엔티엔 가부시키가이샤 | Aberration and the connection structure of the two male screw shafts used for it and the connection structure of the two shafts |
| KR102058810B1 (en) | 2016-08-10 | 2019-12-23 | 미츠비시 히타치 파워 시스템즈 가부시키가이샤 | Bearing device and rolling machine |
| WO2018029837A1 (en) * | 2016-08-10 | 2018-02-15 | 三菱日立パワーシステムズ株式会社 | Journal bearing and rotary machine |
| KR101862933B1 (en) * | 2016-10-13 | 2018-05-31 | 두산중공업 주식회사 | Gas Turbine |
| US11306656B2 (en) | 2019-10-24 | 2022-04-19 | Raytheon Technologies Corporation | Oil drainback arrangement for gas turbine engine |
| JP7493346B2 (en) * | 2020-02-03 | 2024-05-31 | 三菱重工コンプレッサ株式会社 | Rotating Machinery |
| DE112020007025T5 (en) * | 2020-04-07 | 2023-01-19 | Mitsubishi Electric Corporation | SLEEVE BEARING AND ROTATING DEVICE USING A SLEEVE BEARING |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08111955A (en) * | 1994-10-07 | 1996-04-30 | Kusatsu Denki Kk | Bearing device for motor |
| JPH08111954A (en) * | 1994-10-07 | 1996-04-30 | Kusatsu Denki Kk | Bearing device for motor |
| JPH08214490A (en) * | 1995-02-01 | 1996-08-20 | Kusatsu Denki Kk | Bearing device of motor |
| JPH10210701A (en) * | 1997-01-20 | 1998-08-07 | Mitsubishi Electric Corp | Bearing device |
| JPH1189160A (en) * | 1997-09-08 | 1999-03-30 | Mitsubishi Electric Corp | Bearing device for motor |
| JP2000213542A (en) * | 1999-01-26 | 2000-08-02 | Kobe Steel Ltd | Tilting pad journal bearing |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2012461A (en) * | 1932-07-20 | 1935-08-27 | Wyrick Engineering Company | Thrust radial bearing |
| JPS627900Y2 (en) * | 1981-01-16 | 1987-02-24 | ||
| DE3542316A1 (en) * | 1985-09-09 | 1987-03-12 | Kraftwerk Union Ag | DEVICE FOR LEAK OIL-FREE BEARING OIL EXTRACTION ON SLIDING BEARINGS FOR CIRCULAR SHAFTS OF HIGH-TOURED MACHINES |
| JPH0482426A (en) | 1990-07-25 | 1992-03-16 | Nec Corp | Centralized supervisory and control system for satellite communication earth station |
| US5482380A (en) * | 1994-08-24 | 1996-01-09 | Corratti; Anthony A. | Double tilting pad journal bearing |
| JP3170181B2 (en) * | 1995-08-22 | 2001-05-28 | 三菱重工業株式会社 | Air supply device for shaft seal |
| JP2004092878A (en) * | 2002-09-04 | 2004-03-25 | Mitsubishi Heavy Ind Ltd | Slide bearing |
| JP2005240691A (en) * | 2004-02-26 | 2005-09-08 | Mitsubishi Heavy Ind Ltd | Bearing cover |
| JP4764486B2 (en) | 2009-02-27 | 2011-09-07 | 三菱重工業株式会社 | Journal bearing |
| JP2010249200A (en) * | 2009-04-14 | 2010-11-04 | Ihi Corp | Tilting pad bearing and rotary machine |
-
2013
- 2013-03-29 JP JP2013072643A patent/JP6037916B2/en active Active
- 2013-10-22 WO PCT/JP2013/078619 patent/WO2014155798A1/en active Application Filing
- 2013-10-22 KR KR1020157026182A patent/KR101726119B1/en active IP Right Grant
- 2013-10-22 DE DE112013006892.3T patent/DE112013006892B4/en active Active
- 2013-10-22 CN CN201380075060.3A patent/CN105051387B/en active Active
- 2013-10-22 US US14/779,039 patent/US9945291B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08111955A (en) * | 1994-10-07 | 1996-04-30 | Kusatsu Denki Kk | Bearing device for motor |
| JPH08111954A (en) * | 1994-10-07 | 1996-04-30 | Kusatsu Denki Kk | Bearing device for motor |
| JPH08214490A (en) * | 1995-02-01 | 1996-08-20 | Kusatsu Denki Kk | Bearing device of motor |
| JPH10210701A (en) * | 1997-01-20 | 1998-08-07 | Mitsubishi Electric Corp | Bearing device |
| JPH1189160A (en) * | 1997-09-08 | 1999-03-30 | Mitsubishi Electric Corp | Bearing device for motor |
| JP2000213542A (en) * | 1999-01-26 | 2000-08-02 | Kobe Steel Ltd | Tilting pad journal bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911595A (en) * | 2019-05-10 | 2020-11-10 | 纳博特斯克有限公司 | Rotating shaft member holding mechanism and speed reducer |
| CN111911595B (en) * | 2019-05-10 | 2024-06-11 | 纳博特斯克有限公司 | Rotating shaft member holding mechanism and speed reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| US9945291B2 (en) | 2018-04-17 |
| KR20150119440A (en) | 2015-10-23 |
| JP6037916B2 (en) | 2016-12-07 |
| KR101726119B1 (en) | 2017-04-11 |
| DE112013006892B4 (en) | 2020-08-13 |
| DE112013006892T5 (en) | 2015-12-24 |
| CN105051387B (en) | 2018-03-27 |
| JP2014196788A (en) | 2014-10-16 |
| WO2014155798A1 (en) | 2014-10-02 |
| US20160053687A1 (en) | 2016-02-25 |
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Address after: Kanagawa Prefecture, Japan Patentee after: Mitsubishi Power Co., Ltd Address before: Kanagawa Prefecture, Japan Patentee before: MITSUBISHI HITACHI POWER SYSTEMS, Ltd. |